Std molar entropy
|
120 J·mol-1·K-1
|
Odor
|
odorless
|
Refractive Index
|
1.658 (anhydrous), 1.4357 (heptahydrate)
|
Solubility
|
57.7 g/100 mL, anhydrous (20 °C) in water
|
Solubility
|
alcohols
|
Apperance
|
white powder
|
Boiling Point
|
740 °C (anhydrous) 280 °C, decomp (heptahydrate)
|
Std enthalpy of formation
|
-983 kJ·mol-1
|
Density
|
3.54 g/cm3 (anhydrous) 2.072 g/cm3 (hexahydrate)
|
Flash Point
|
Non-flammable
|
Melting Point
|
680 °C decomp. (anhydrous) 100 °C (heptahydrate) 70 °C, decomp (hexahydrate)
|
EU Index
|
030-006-00-9
|
European Hazard Symbols
|
Harmful (Xn)
|
European Hazard Symbols
|
Dangerous for the environment (N)
|
Risk Statements
|
R22, R41, R50/53
|
RTECS
|
ZH5260000
|
Safety Statements
|
S2, S22, S26, S39, S46, S60, S61
|
UN Number
|
3077
|